Geoscientist, 15, 2, 4-9 (2005).

Extract: It is becoming increasingly common to see maps presented as digital data in Geographic Information Systems (GIS). Both the Ordnance Survey and the BGS provide their maps in a GIS format, and it is now commonplace to see digital maps used as part of the undergraduate curriculum in universities. Yet the field data that most people collect while making these maps is still largely based on paper maps and notebooks. Recent innovations in the use of handheld computers and Global Positioning Systems (GPS) have provided geologists with a whole new way of collecting their field data.